package com.igeek.d0619.test1;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * @Author: zhiyu
 * @Date:17:04
 * @DESC:
 */
@Target({ElementType.TYPE,ElementType.FIELD,ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
public @interface Book {
    String value();
    double price() default 100.0;
    String[] authors();
}
